NAICS 522320: Financial Transactions Processing
This industry comprises establishments primarily engaged in providing one or more of the following: (1) financial transaction processing (except central bank); (2) reserve and liquidity services (except central bank); and/or (3) check or other financial instrument clearinghouse services (except central bank).

Illustrative Examples:

Automated clearinghouses, bank or check (except central bank)
Credit card processing services
Check clearing services (except central bank)
Electronic funds transfer services, including peer-to-peer payment services 

ExioML sector: Services auxiliary to financial intermediation (67)
Region: US | Year: 2022
Sector value added: 469981.27788 M EUR | Employment: 1762.64749713 thousand persons
Sector GHG emissions: 5220632767.54 kg CO2 eq | Energy carrier net total: 101436.728861 TJ | Carbon intensity: 0.011108171778861755

Company: American Express Company
American Express Company, American financial corporation that primarily issues credit cards, processes payments, and provides travel-related services worldwide. Headquarters are in New York.